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Green Basics

Understanding Blower Door Tests

Blower door tests reveal the rate of air leakage in and out of a home

A full energy audit can remedy many of those leaks and net energy savings.

Used by energy auditors, blower-door tests reveal where a home isn’t airtight. Leaky houses lose heat and invite moisture and air pollution into the living space. Follow along on a home-energy audit to learn what a blower-door test reveals and what fixes energy auditors recommend.